CN102963871A - Chlorine dioxide generator - Google Patents
Chlorine dioxide generator Download PDFInfo
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- CN102963871A CN102963871A CN2012105634004A CN201210563400A CN102963871A CN 102963871 A CN102963871 A CN 102963871A CN 2012105634004 A CN2012105634004 A CN 2012105634004A CN 201210563400 A CN201210563400 A CN 201210563400A CN 102963871 A CN102963871 A CN 102963871A
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- strainer
- pipe
- feed
- chlorine dioxide
- filter
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Abstract
The invention discloses a chlorine dioxide generator, which comprises a reaction kettle and is characterized in that a delivery pump and a filter are further arranged outside the reaction kettle, wherein a feed hole of the delivery pump is communicated with the reaction kettle through a pipeline, a discharge hole of the delivery pump is communicated with a feed pipe of the filter through a pipeline, a liquid outlet pipe of the filter is communicated with the reaction kettle, and the filter is provided with a valve for discharging solid materials; the feed pipe and the liquid outlet pipe of the filter are respectively provided with a valve capable of turning on/off the feed pipe or the liquid outlet pipe, a feed end of the filter is provided with an air intake pipe communicated with external atmosphere, and the air intake pipe is provided with a valve; and the filter and a connecting pipeline constitute a closed system. According to the invention, the technical problem that a great quantity of sodium chloride is separated out to block the pipeline of the reaction kettle in a chlorine dioxide preparation process is solved, the conversion rate of the chlorine dioxide is greatly improved, meanwhile, the defect that the filter needs to be arranged on a position about 10 meters above an equipment base surface of the reaction kettle is overcome completely, and the investment on equipment is lowered greatly.
Description
Technical field
The present invention relates to a kind of chlorine dioxide generator, the chlorine dioxide generator of solid precipitate is particularly arranged in the product.
Background technology
The chlorine dioxide disinfection liquid that the sterilization of the municipal wastewater of present domestic a considerable amount of tap water, hospital sewage, swimming-pool water, sewage work etc. adopts chlorine dioxide generator combined by using chemical method to produce mostly carries out.Chlorine dioxide generator combined by using chemical method refers to generate through chemical reaction take sodium chlorate and hydrochloric acid as main raw material the generating unit of the mixing solutionss such as dioxide peroxide, chlorine and sodium-chlor, its generally by volume pump, sodium chlorate and the hydrochloric acid of raw material storage tank, conveying and the metering raw material of the storage of raw materials react mixing solutionss such as producing dioxide peroxide and chlorine reactor, to the well heater of reactor heating and in the reactor installation compositions such as water sprayer of the mixing solutionss such as suction dioxide peroxide and chlorine.The prior art Main Problems is that the dioxide peroxide yield is low, the performance requriements of producer is among the State Standard of the People's Republic of China GB/T20621-2006 " chlorine dioxide generator combined by using chemical method ": the requirement of conversion rate of chlorine dioxide salable product is for being not less than 50%, and the requirement of acceptable end product is for being not less than 60%.This lower conversion rate of products has caused a large amount of wastage of material, makes the running cost of equipment higher.For improving conversion rate of chlorine dioxide, the running cost of reduction equipment, the prior art Adopts measure mainly contains following several: the aeration system of the reaction solution blowing air in the reactor, adopt the stirring technique that agitator arm stirs the reaction solution in the reactor or the reaction of high order technique that adopts the staged reactor series connection etc.These measures only are the product yields that has suitably improved dioxide peroxide, but all can not change the low problem of dioxide peroxide yield.Prior art can not the Effective Raise conversion rate of chlorine dioxide major cause cause owing to raw material can not react completely.In the prior art, dioxide peroxide, chlorine that the reaction raw materials reaction produces are gas at normal temperatures and pressures, in reactor, directly can in reaction solution, overflow with gas form and flow into the water sprayer, and the sodium-chlor that reaction produces is solid at normal temperatures and pressures, can separate out with the lenticular form from reaction solution after its solubleness in reactor internal reaction liquid reaches capacity.If the sodium chloride crystal of separating out in a large number can not get timely cleaning, can block the reactor pipeline.Because chlorine dioxide has explosivity, obstruction reactor pipeline can bring equipment explosion dangerous when serious.Separate out in reaction solution for preventing sodium-chlor, the mode of just reaction solution being taken away in the reactor before the sodium-chlor that existing chlorine dioxide generator technology all produces in reaction solution does not also reach capacity and separates out solves the problem of sodium-chlor crystallization, this technology has solved the problem that the sodium-chlor crystallization blocks pipeline, but the negative interaction that brings be have a considerable amount of sodium chlorate and hydrochloric acid also unreacted just be sucked away, cause all lower problems of the transformation efficiency of raw material and conversion rate of chlorine dioxide.
At present, the device that the solid precipitate that has also occurred utilizing filtering system that reaction is produced filters is to improve transformation efficiency and the conversion rate of chlorine dioxide of raw material.As: application number is the Chinese patent application of 200810046339.X, and it is after adopting the reaction solution that will contain crystallization precipitate to filter by drum type vacuum filter crystallization precipitate to be filtered out, and filtrate cycle is returned the producer recycle again.Although above-mentioned technology can improve transformation efficiency and the conversion rate of chlorine dioxide of raw material, but owing to be generally negative pressure in the producer in the reaction process, when utilizing drum type vacuum filter to filter, need to overcome negative pressure and just can carry out the normal filtration operation, therefore, vacuum filter generally all is arranged on the positions of about ten meters height on the reactor equipment basic unit face, utilizes pressure reduction to overcome negative pressure.Not only there is the defective of inconvenient operation in this, and has apparatus expensive, defective that construction investment is huge.In addition, above-mentioned technology also exists chlorine dioxide in the filtration procedure to overflow in a large number and the problem of environmental pollution that causes.
Summary of the invention
For the defects that exists in the prior art, the invention provides a kind of chlorine dioxide generator that can reduce to invest, can greatly improve conversion rate of chlorine dioxide, non-environmental-pollution.
The present invention is achieved by the following technical solution: a kind of chlorine dioxide generator, comprise reactor, its special character is, outside reactor, also be provided with transferpump, strainer, the opening for feed of transferpump is communicated with reactor by pipeline, the discharge port of transferpump is communicated with the feed-pipe of strainer by pipeline, and the drain pipe of strainer communicates with reactor, and described strainer is provided with the valve for the discharging solid materials; But the valve that is equipped with on/off feed-pipe and drain pipe at feed-pipe and the drain pipe of strainer is provided with the inlet pipe that communicates with outside atmosphere at the feed end of strainer, and inlet pipe is provided with valve; Described strainer and connecting pipeline form closed system.
Among the present invention, since in the outer setting of reactor airtight filtering system, strainer is to filter under the pressure identical with system when filtering, and does not need to overcome the inside and outside pressure reduction of system, therefore, the strainer among the present invention can be arranged on any height.When needs are discharged overanxious thing, can be by closing the valve on feed-pipe and the drain pipe, and the valve of opening on the inlet pipe makes intrasystem pressure with extraneous consistent, thus can the valve of material carries out discharge by discharging fixedly.
Strainer among the present invention can adopt any strainer that can form with connecting pipeline closed system of the prior art, consider the simple and work reliability of structure design, strainer described in the present invention comprises that one is provided with the cylindric casing of the sealing of feed-pipe and drain pipe, in the described casing along casing axially be provided with cartridge filter, the bottom of described strainer is provided with the bottom valve that communicates with its inside.
Further scheme is, the feed-pipe of described strainer leads to the inside in cartridge filter, and the drain pipe of strainer leads between casing and cartridge filter, and bottom valve communicates with the bottom of cartridge filter.
In order to guarantee that strainer is normal, high efficiency filter, the top of the feed-pipe inherent filtration device of described strainer leads to the inside in cartridge filter, and the drain pipe of described strainer is arranged on the bottom of casing.
For the ease of leaching the smooth discharge of solids, described cartridge filter is the cone tubular, and its big opening end down.In order further to improve the transformation efficiency of raw material, described reactor also is provided with the recycle system that is connected with reactor outward.Pass through the recycle system, on the one hand so that reaction solution high speed rotating in reactor, the sodium-chlor of separating out in the reaction solution is in suspended state and can be deposited to the reactor bottom and blocks pipeline in reaction solution, also accelerated on the other hand the speed of reaction of sodium chlorate and hydrochloric acid.
The invention has the beneficial effects as follows: the present invention passes through in the airtight filtering system of the outer setting of reactor, having realized on the one hand react the solid precipitate of the sodium-chlor of generation separates from reaction solution, solve sodium-chlor and separated out in a large number the problem that can block the reactor pipeline, for restraining factors have been cleared away in the abundant reaction of sodium chlorate and hydrochloric acid, greatly improved the transformation efficiency of raw material, strainer among the present invention is to filter under the pressure identical with system when filtering on the other hand, do not need to overcome the inside and outside pressure reduction of system, therefore, strainer can be arranged on any height, the needs that overcome the available technology adopting drum type vacuum filter fully and existed overcome system's inside and outside differential pressure, filter need be arranged on the defectives of about ten meters height on the reactor equipment basic unit face, greatly reduces facility investment.In addition, the filtration procedure among the present invention is to finish in airtight system, does not have chlorine dioxide to leak in the filtration procedure, has avoided overflowing in a large number the problem of environmental pollution that causes because of chlorine dioxide.The present invention is reliable structure design by adopting simple, and its one-piece construction is simple, and low cost of manufacture can be saved facility investment greatly, is conducive to applying of this device.
Description of drawings
Fig. 1 is the structural representation in the embodiment of the invention 1;
Fig. 2 is the structural representation of the strainer among the present invention;
Fig. 3 is the structural representation of the another kind of strainer among the present invention;
Fig. 4 is the structural representation in the embodiment of the invention 2;
Among the figure, 1, feed-pipe, 2, strainer, 3, drain pipe, 4, bottom valve, 5, the drain pipe valve, 6, material inlet, 7, reactor, 8, the chlorine dioxide outlet, 9, transferpump, 10, the feed-pipe valve, 11, inlet pipe, 12, valve, 13, casing, 14, cartridge filter, 15, outlet pipe, 16, recycle pump, 17, inflow pipe.
Embodiment
Also the present invention is further illustrated by reference to the accompanying drawings below by specific embodiment:
As shown in Figure 1, a kind of chlorine dioxide generator, comprise reactor 7, outside reactor 7, also be provided with transferpump 9, strainer 2, wherein, the opening for feed of transferpump 9 is communicated with reactor 7 by pipeline, the discharge port of transferpump 9 is communicated with the feed-pipe 1 of strainer 2 by pipeline, strainer 2 is the enclosed filter device, the drain pipe 3 of strainer 2 communicates with reactor 7, but be provided with the valve 10 of on/off feed-pipe 1 at the feed-pipe 1 of strainer 2, but be provided with the valve 5 of on/off drain pipe 3 at the drain pipe 3 of strainer 2, also be provided with the valve for the discharging solid materials on the described strainer 2.Feed end at strainer 2 is provided with the inlet pipe 11 that communicates with outside atmosphere, and inlet pipe 11 is provided with the valve 12 that can open or close inlet pipe 11.Strainer 2 forms closed system with connecting pipeline.Reactor 7 in the present embodiment is prior art, and it is provided with material inlet 6 and chlorine dioxide outlet 8.
Strainer among the present invention can adopt any strainer that can form with connecting pipeline closed system of the prior art, considers the simple and work reliability of structure design, and the strainer in the present embodiment adopts strainer as shown in Figure 2.This strainer 2 comprises that one is provided with the cylindric casing 13 of the sealing of feed-pipe 1 and drain pipe 3, and described casing 13 interior axial restraints along casing 13 are provided with cartridge filter 14, and the bottom of strainer 2 is provided with the bottom valve 4 that communicates with its inside.For the ease of filtering, the feed-pipe 1 of present embodiment middle filtrator 2 leads in the inside of cartridge filter 14, and the drain pipe 3 of strainer 2 is located at the bottom of casing 13 and leads between casing 13 and cartridge filter 14, and bottom valve 4 communicates with the bottom of cartridge filter 14.
The working process of present embodiment is: reaction raw materials sodium chlorate and hydrochloric acid enter reactor 7 from material inlet 6, produce dioxide peroxide, chlorine and sodium-chlor etc. at reactor 7 internal reactions, dioxide peroxide, chlorine overflow from reaction solution by chlorine dioxide outlet 8 discharges and enter subsequent processing.Carrying out along with reaction, the sodium-chlor quantity that produces is more and more, after the solubleness of sodium-chlor in reaction solution of reaction generation reaches capacity, it can separate out from reaction solution, when the solid precipitate content in the reaction solution reaches certain amount, open the valve on feed-pipe 1 and the drain pipe 3, starting reaction solution that transferpump 9 will contain the solid precipitate sends in the strainer 2 and filters, the solid precipitate that filters out is at strainer 2 interior formation of deposits filter cakes, the drain pipe 3 of filtrate inherent filtration device 2 returns proceeds reaction in the reactor 7, further produce chlorine dioxide.When the filter cake in the cartridge filter runs up to when a certain amount of, close first the valve on transferpump 9 and feed-pipe 1 and the drain pipe 3, and open the valve 12 on the inlet pipe 11, make system's inner and outer air pressure consistent, open bottom valve 4 after, filter cake is discharged through bottom valve 4 from cartridge filter 14 is interior.After the filter cake discharge is complete, valve-off 12, the valve of opening on feed-pipe and the drain pipe can repeat filter operation, and so forth circulation.
The restriction that the present invention makes the reaction of sodium chlorate and hydrochloric acid separated out by sodium-chlor can fully improve the transformation efficiency of dioxide peroxide.
For the ease of the smooth discharge of the solids that filters out, the cartridge filter in the present embodiment can be designed to bore tubular, its big opening end down, as shown in Figure 3.
Other parts in the present embodiment adopt prior art, do not repeat them here.
It is not the restriction that it is carried out that above-described embodiment only is used for explanation of the present invention, those skilled in the art also can change on this basis, for example, the inlet pipe 11 in the present embodiment can be set to communicate with feed-pipe 1, also can be arranged on the casing of strainer 2.
Present embodiment is substantially the same manner as Example 1, and difference is also to be provided with the recycle system that is connected with reactor 7 in the present embodiment outside reactor 7.This recycle system comprises recycle pump 16, and the opening for feed of recycle pump 16 is communicated with reactor 7 by inflow pipe 17, and the discharge port of recycle pump 16 is communicated with reactor 7 by outlet pipe 15.During recycle system work, start recycle pump 16, reaction solution in the reactor 7 returns reactor 7 again through outlet pipe 17, recycle pump 16, inflow pipe 15 successively, at reactor 7 interior formation eddy flows, on the one hand so that the sodium-chlor of separating out in the reaction solution is in suspended state can not be deposited to reactor 7 bottoms and block pipeline, also accelerated on the other hand the speed of reaction of sodium chlorate and hydrochloric acid in reaction solution.
Other parts in the present embodiment are identical with embodiment 1.
Claims (6)
1. chlorine dioxide generator, comprise reactor (7), it is characterized in that: outside reactor (7), also be provided with transferpump (9), strainer (2), the opening for feed of transferpump (9) is communicated with reactor (7) by pipeline, the discharge port of transferpump (9) is communicated with by the feed-pipe of pipeline with strainer (2), the drain pipe of strainer (2) communicates with reactor (7), and described strainer (2) is provided with the valve for the discharging solid materials; At strainer (2) but feed-pipe and the drain pipe valve that is equipped with on/off feed-pipe and drain pipe, be provided with the inlet pipe (11) that communicates with outside atmosphere at the feed end of strainer (2), inlet pipe (11) is provided with valve; Described strainer (2) forms closed system with connecting pipeline.
2. chlorine dioxide generator according to claim 1, it is characterized in that: described strainer (2) comprises that one is provided with the cylindric casing (13) of the sealing of feed-pipe and drain pipe, in the described casing (13) along casing (13) axially be provided with cartridge filter (14), the bottom of described strainer (2) is provided with the bottom valve (4) that communicates with its inside.
3. chlorine dioxide generator according to claim 2 is put, it is characterized in that: the feed-pipe of described strainer (2) leads in the inside of cartridge filter (14), the drain pipe of strainer (2) leads between casing (13) and cartridge filter (14), and bottom valve (4) communicates with the bottom of cartridge filter (14).
4. chlorine dioxide generator according to claim 3, it is characterized in that: the top of the feed-pipe inherent filtration device (2) of described strainer (2) leads in the inside of cartridge filter (14), and the drain pipe of described strainer (2) is arranged on the bottom of casing (13).
5. according to claim 3 or 4 described chlorine dioxide generators, it is characterized in that: described cartridge filter (14) is the cone tubular, and its big opening end down.
6. it is characterized in that according to claim 1 and 2 or 3 or 4 described chlorine dioxide generators: the outer recycle system that is connected with reactor (7) that also is provided with of described reactor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563400.4A CN102963871B (en) | 2012-12-21 | 2012-12-21 | Chlorine dioxide generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563400.4A CN102963871B (en) | 2012-12-21 | 2012-12-21 | Chlorine dioxide generator |
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| Publication Number | Publication Date |
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| CN102963871A true CN102963871A (en) | 2013-03-13 |
| CN102963871B CN102963871B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210563400.4A Active CN102963871B (en) | 2012-12-21 | 2012-12-21 | Chlorine dioxide generator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399332A (en) * | 1993-10-20 | 1995-03-21 | Sterling Canada, Inc. | Dynamic leaching procedure for metathesis |
| US5674466A (en) * | 1995-06-07 | 1997-10-07 | Eka Nobel Ab | Method of producing chlorine dioxide |
| CN101003362A (en) * | 2007-01-11 | 2007-07-25 | 樊德强 | Safe, environmental protecting chlorine dioxide generator |
| CN101024492A (en) * | 2007-02-09 | 2007-08-29 | 中北大学 | High-purity chlorine dioxide gas generating method and apparatus |
| CN203021295U (en) * | 2012-12-21 | 2013-06-26 | 闫云涛 | Chlorine dioxide generator |
-
2012
- 2012-12-21 CN CN201210563400.4A patent/CN102963871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399332A (en) * | 1993-10-20 | 1995-03-21 | Sterling Canada, Inc. | Dynamic leaching procedure for metathesis |
| US5674466A (en) * | 1995-06-07 | 1997-10-07 | Eka Nobel Ab | Method of producing chlorine dioxide |
| CN101003362A (en) * | 2007-01-11 | 2007-07-25 | 樊德强 | Safe, environmental protecting chlorine dioxide generator |
| CN101024492A (en) * | 2007-02-09 | 2007-08-29 | 中北大学 | High-purity chlorine dioxide gas generating method and apparatus |
| CN203021295U (en) * | 2012-12-21 | 2013-06-26 | 闫云涛 | Chlorine dioxide generator |
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| CN102963871B (en) | 2014-06-11 |
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Effective date of registration: 20170605 Address after: 250061 Lixia District, Shandong City, Ji'nan Province, No. ten, No. 17923, Shandong University, Qianfo Hill Campus Patentee after: Shandong Hongshi environmental protection science and Technology Co Ltd Address before: 250012 engineering training center, Shandong University, No. 12550 East Fourth Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Yan Yuntao |
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